# US 5,702,378 A · Resilient material and disposable, absorbent article comprising such a material

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- Number: US 5,702,378 A
- Document ID: US5702378A
- Status: Granted
- Kind: A
- Application number: 08/447,531
- Filed: 1995-05-24
- Granted: 1997-12-30
- Earliest claimed: 1989-07-06
- Assignees: Molnlycke AB
- Inventors: Urban Widlund; Roy Hansson
- Web page: https://patentgrep.com/patent/US5702378A

## CPC

- A61F 13/51484: {being inhomogeneous in the plane of the sheet, i.e. having zones of different properties or structures}
- A61F 13/15707: {Mechanical treatment, e.g. notching, twisting, compressing, shaping}
- A61F 13/15731: {Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing}
- A61F 13/512: characterised by its apertures, e.g. perforations
- A61F 13/513: {characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect;} having areas of different permeability
- A61F 13/51464: {being stretchable or elastomeric}
- B26F 1/24: Perforating by needles or pins
- A61F 13/15585: {of babies' napkins, e.g. diapers (A61F13/15617 - A61F13/15804 take precedence)}
- A61F 2013/49042: {with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length}
- A61F 2013/49088: {characterized by the leg opening}
- A61F 2013/51322: {being elastomeric or stretchable}
- A61F 2013/51429: {being elastomeric or stretchable sheet}
- Y10S 428/91: Product with molecular orientation
- Y10T 428/24273: including aperture
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- B26F: PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING (marking-out, perforating or making buttonholes A41H25/00; shoemaking A43D; surgery A61B; punching metal B21D; drilling metal B23B; cutting of metal by applying heat locally, e.g. flame cutting, B23K; cutting by abrasive fluid jets B24C5/02; details common to machines for severing B26D; drilling wood B27C; drilling stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; of glass C03B; of leather C14B; of textile materials D06H; for light guides G02B6/25; of tickets G07B)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A disposable, absorbent article such as a diaper or an incontinence guard includes an absorbent pad disposed between inner and outer casing layers. At least one of the inner and outer casing layers is made of an elastic material having areas from which material has been removed while leaving coherent material parts in order to impart different elastic properties to different parts of the material. The material removed can be in the form of through holes or blind holes.

## Claims

### Claim 1

A disposable, absorbent article such as a diaper or an incontinence guard, which comprises an outer casing layer, an inner casing layer, and an absorbent pad enclosed between said inner and outer casing layers, at least one of the casing layers being manufactured from a thin elastic material which includes areas from which material has been removed while leaving coherent material parts in order to give different parts of the elastic material different elastic properties upon stretching thereof, the location of said areas on the article being chosen so as to give the article mutually different elastic properties in different parts thereof, said at least one of the inner and outer casing layers of elastic material including through holes and blind holes.

### Claim 2 (depends on 1)

A disposable, absorbent article according to claim 1, wherein the inner casing layer is made of said thin elastic material and in use is intended to be closest to the body of the wearer, said thin elastic material having laminated thereto a non-woven material which includes through-holes and blind holes which coincide with the through holes and blind holes in the thin elastic material.

### Claim 3

A disposable, absorbent article comprising an outer casing layer, an inner casing layer and an absorbent pad positioned between the inner and outer casing layers, at least one of the inner and outer casing layers being fabricated of an elastic memory material which is elastically stretchable from a contracted state to a stretched state and contractible after being stretched, said elastic memory material including areas from which material has been removed while leaving coherent material parts in order to give different parts of the material different elastic properties upon stretching said areas from which material has been removed includes through holes and blind holes, said blind holes being disposed in parts of said at least one of the inner and outer casing layers located outside said absorbent pad.